nanogui: Thread-safety, wrapping globals in structs, RTEMS
Subject:
Re: Thread-safety, wrapping globals in structs, RTEMS
From:
"Greg Haerr" ####@####.####
Date:
18 Dec 2000 22:48:52 -0000
Message-Id: <002201c06945$d8ebdd10$6817dbd0@censoft.com>
: RTEMS has provisions for giving each rtems_task a private copy
: of global variables, and I haven't yet played with this and so I haven't
: yet identified the gotchas I'd encounter by trying to privatize nano-X
: globals.
I'd like to get your list of globals used. There are two basic
types, static's per file and shared globals. I've had some
thought on moving some of the g_ globals in engine/devopen.c into
the PSD struct, for various reasons. Others, including all the
statics, are really global and shouldn't be per-task nor should
they affect the operation of Microwindows in a multi-threaded
environment, unless you're wanting to be able to draw simultaneously
from multiple tasks.
:
: Much more elegant would be the wrapping of globals into structs. Has
: anyone tried tackling this, or given thought to doing so? Or how to do so
: without destroying everything? and if not, is anyone interested in
: giving it a shot with me? I'd start in about two weeks.
I like the idea, but what really does wrapping into a struct buy
us from a multi-tasking perspective?
Regards,
Greg
